Blue-Scribbled Damsel (Pomacentrus nagasakiensis)
This little blue fish is another of our tropical visitors that belongs to the Damselfish family and only about the third I have ever found. The tiny juveniles are found hiding amongst rocks. With water temperatures starting to drop below 20 degrees many of the tropical visitors to the waters around Sydney will start to disappear in the next few weeks.
Fish of Cabbage Tree Bay Aquatic Reserve, Sydney 